स यावदादित्य पुरस्तादुदेता पश्चादस्तमेता वसूनामेव तावदाधिपत्य स्वाराज्य पर्येता ॥ ४ ॥
In plain words
For as long as the sun rises in the east and sets in the west, so long shall that knower attain the lordship and sovereign empire of the Vasus.
Close to the Sanskrit
As long as the sun shall rise in the east and set in the west, for that long he will attain the lordship and self-empire of the Vasus alone.